package Lambda.mydemo2;

import java.util.Arrays;

public class Test1 {
    public static void main(String[] args) {
        String[] arr={"a","aaaa","aaa","aa"};
        Arrays.sort(arr,(o1,o2) -> o1.length() - o2.length());
        System.out.println(Arrays.toString(arr));
    }
}
